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如图,以AC为斜边在异侧作Rt△ABC和Rt△ADC,∠ABC=∠ADC=90°...
如图,以AC为斜边在异侧作Rt△ABC和Rt△ADC,∠ABC=∠ADC=90°,∠BCD=45°,AC=2,则BD的长度为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101707494455045/SYS201311031017074944550011_ST/images0.png)
A.1
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101707494455045/SYS201311031017074944550011_ST/0.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101707494455045/SYS201311031017074944550011_ST/1.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101707494455045/SYS201311031017074944550011_ST/2.png)
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